Dayco 72706 Radiator Coolant Hose - Upper

Dayco 72706 Curved Radiator Hose

Dayco 72706 is a branched radiator coolant hose built from EPDM for cooling-system service on select Volvo applications. This curved radiator hose uses a protective sleeve and follows the OE-style routing needed for upper hose replacement on Volvo C30, C70, S40, and V50 models.

Key Features

• EPDM construction for coolant-hose durability
• Black finish for a clean OE-style appearance
• Branched hose design with multiple formed ends
• Protective sleeve included; heat shield not included
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco 72706 radiator hose dimensions include 1 1/4 in., 7/8 in., and 5/8 in. inside diameters at the branched ends

Product Details

This Dayco Curved Radiator Hose line is engineered for formed coolant routing where a straight hose will not match the factory path. Part number 72706 is a branched upper radiator hose with a 24 1/2 in. trunk height and molded end sizing that supports proper connection points in the cooling system. It cross-references Volvo 30723082 for the same application.

Compatible With select Volvo cooling-system applications, this hose fits 2007-2013 Volvo C30, upper; 2006-2013 Volvo C70, upper; 2004-2011 Volvo S40, upper; and 2005-2011 Volvo V50, upper. Use Dayco 72706 when replacing a worn or damaged upper radiator hose on these vehicles.

Common Problems This Part Can Address

• Coolant leaks from cracked or aged hose material
• Softening, swelling, or collapse of the upper radiator hose
• Improper fit from a hose that does not follow the factory curve
• Cooling-system service needs after hose deterioration
• Replacement of a branched hose with multiple formed connections

Installation Notes and Tips

Inspect all mating necks, clamps, and nearby cooling-system components before installation. Confirm the hose routing matches the original upper hose path and verify each end seats fully on the correct connection point. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and dimensional standards for coolant-hose service.